Fastener for meeting-rails of sashes



(No Model.) I I J. W. ATWOOD.

FASTENER FOR MEETING RAILS OI SASHES. I No. 400,535. Patented Apr. 2 1889.

N. PETERS. Phvtlrl-Mflgnpher, Walhingion, D. C.

UNITED STATES PATENT OFFICE.

JOHN W. AT W'OOD, OF WAUREGAN, CONNECTICUT.

FASTENER FOR MEETING-RAILS OF SASHES.

SPECIFICATION forming part Of Letters Patent N0. 400,535, dated. April 2, 18891 Application filed December 14, 1888! Serial No. 293,636. (No model.)

.To all whom it may concern-- Be it known that I, JOHN W. ATWOOD, a citizen of the United States, and a resident of Wauregan, in the county of Windham and State of Connecticut, have invented certain new and useful Improvements in Fasteners for the MeetingRails of Sashes, which improvements are fully set forth and described in the following specification, reference being had to the accompanying sheet of drawings This invention is in sash -fasteners, and has particular relation to that sub-class used commonly for locking together the meetingrails of window-sash, in which a pivoted arm is attached to the rail of one sash and is adapted to swing into proper position to inless than the width of the screw-holes, it becomes necessary to plug up said holes'and make new ones, thus disfiguring the sash.

My present invention has for its immediate object the improvement of such fasteners, to the end that any desired adjustment may be quickly made within the lockin g device, rather than by the removal of its support-ingplates, as before described.

To illustrate my invention, I have annexed hereto a sheet of drawings, in which Figure 1 is a perspective View of a sashfastener embodyingmy improvement. Fig. 2 is a detached face view of the disk 0. In

Fig. 3 a modification of my invention is shown,

in which one check-nut is dispensed with.

Referring-to the drawings, the letter a denotes a plate secured 'to the rail A of one sash, and b a similar plate on the adjacent sash B. Plate a has pivoted to its upper side an arm, 0, whose free end maybe swung in a horizontal plane to engage a spring-pressed cam, d, hung in plate b.

My device may be readily applied to any of the sash-fasteners of this class; butI have chosen the one illustrated in Fig. l, and which I have just briefly described, as it is a wellknown type of said class.

Heretofore, so far as I am familiar with such fasteners, the free end of said arm chas been formed with a downwardly-proj ecting fixed lug that interlocked with the cam d; but in the improved form here shown I have provided a lug on said arm 0 that may be adjusted relative to the pivotal center of said arm. My preferred form of construction is shown in Fig. 1 ,in which the outer end of arm 0 is substantially square in cross-section, and is screw-threaded at the corners or angles to receive nuts n 71, whose perimeters are milled or checked, as shown. Between these nuts is a disk or washer, 0, having a square opening to fit the squared stem of arm 0, and having a downwardly-projecting lug, 0, adapted to engage the cam (1 when swung at right angles to the sash. This lug 0 may be quickly moved outward or inward on arm 0, and. securely fixed in any desired position by correspondingly adjusting the nuts 72 n.

In the modification illustrated in Fig. 3 the nut 01, is dispensed with and the disk ois provided with a screw-threaded round hole that fits the threaded stem of arm 0. Said disk then serves as one nut, and thenut n" asa checknut to retain it in position after adjustment.

With this construction the disk may be adjusted on the arm 0 by rotating said disk one or more revolutions, the degree or minimum limit of adjustment being governed by the fineness of the screw-thread.

My described improvement adds but little to the cost of this class of devices, yet it practically and effectually overcomes the obj ection heretofore existing.

Having thus described my invention, I clairn In combination with a cam or similar projection on one sash, a lever-arm bearing an angular projection adjustable on said leverarm, and adapted to swing into engagement with said cam, as set forth, and a check-nut on said lever-arm for retaining said angular projection in a given position, all substantially as and for the object specified.

. JOHN W. ATWOOD.

Witnesses:

J. A. ATWOOD, ARTHUR GILL. 

